The LPS6235-224MRC: The ferrite core and shielded construction mean the inductor's magnetic field is largely contained within the package — adjacent components on a dense board see less coupling than an unshielded drum core would produce. The 2424 footprint is a standard size; the pad layout matches the supplier device package 2424, so no custom land pattern is needed for reflow assembly.
Current rating and DCR trade-off
Rated for 450 mA continuous with a saturation current of 310 mA — the saturation point is the hard limit for DC bias; once the core saturates, inductance drops off sharply and the ripple current in a switching converter rises. Maximum DC resistance is 820 mOhm, which at 450 mA produces about 166 mW of I²R loss — this is the self-heating that raises the winding temperature above ambient and must be factored into the thermal budget of a compact PSU. Inductance is specified at 100 kHz test frequency; the 220 µH value holds up to the self-resonant frequency of 5.6 MHz, above which the component behaves capacitively.